Adam Peterson vs. Jerrod Riggan — Career Comparison

Adam Peterson built a career as a starting pitcher and Jerrod Riggan as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Jerrod Riggan posted stronger surface numbers — ERA 5.19 and WHIP 1.835 compared to 5.46 and 1.516 for Adam Peterson. By the career numbers, Jerrod Riggan had the better of this cross-role comparison — though era context would sharpen the verdict.